diff --git a/include/dynarmic/callbacks.h b/include/dynarmic/callbacks.h
index 9e127717..0ec6436b 100644
--- a/include/dynarmic/callbacks.h
+++ b/include/dynarmic/callbacks.h
@@ -32,7 +32,7 @@ struct UserCallbacks {
     void (*InterpreterFallback)(std::uint32_t pc, Jit* jit, void* user_arg);
     void* user_arg = nullptr;
 
-    bool (*CallSVC)(std::uint32_t swi);
+    void (*CallSVC)(std::uint32_t swi);
 
     // Page Table
     static constexpr std::size_t PAGE_BITS = 12;
diff --git a/tests/arm/fuzz_arm.cpp b/tests/arm/fuzz_arm.cpp
index da5576d8..86b3b3be 100644
--- a/tests/arm/fuzz_arm.cpp
+++ b/tests/arm/fuzz_arm.cpp
@@ -122,7 +122,7 @@ static void Fail() {
 static Dynarmic::UserCallbacks GetUserCallbacks() {
     Dynarmic::UserCallbacks user_callbacks{};
     user_callbacks.InterpreterFallback = &InterpreterFallback;
-    user_callbacks.CallSVC = (bool (*)(u32)) &Fail;
+    user_callbacks.CallSVC = (void (*)(u32)) &Fail;
     user_callbacks.IsReadOnlyMemory = &IsReadOnlyMemory;
     user_callbacks.MemoryRead8 = &MemoryRead8;
     user_callbacks.MemoryRead16 = &MemoryRead16;
diff --git a/tests/arm/fuzz_thumb.cpp b/tests/arm/fuzz_thumb.cpp
index b729db11..d7f92e20 100644
--- a/tests/arm/fuzz_thumb.cpp
+++ b/tests/arm/fuzz_thumb.cpp
@@ -110,7 +110,7 @@ static void Fail() {
 static Dynarmic::UserCallbacks GetUserCallbacks() {
     Dynarmic::UserCallbacks user_callbacks{};
     user_callbacks.InterpreterFallback = &InterpreterFallback;
-    user_callbacks.CallSVC = (bool (*)(u32)) &Fail;
+    user_callbacks.CallSVC = (void (*)(u32)) &Fail;
     user_callbacks.IsReadOnlyMemory = &IsReadOnlyMemory;
     user_callbacks.MemoryRead8 = &MemoryRead8;
     user_callbacks.MemoryRead16 = &MemoryRead16;